front groups, such as the global climate coalition, information council for the environment, heartland institute, annapolis center, and cooler heads coalition are created or enlisted to propagate this message of doubt. deniers question the motives and engage in harassment of the real credentialed climate scientists. well, for the record, there has been scientific debate regarding climate change. ideas have been tested, theories have been ventured, and the evidence keeps coming back to the same conclusion: increased carbon dioxide in the atmosphere from human-related sources is strengthening the greenhouse effect, adding to recent warming, and acidifying the oceans. actually, the evidence coming in tends to confirm the worst and most dangerous projections. mr. president, may i interrupt my remarks and ask unanimous consent that morning business be extended until 2:00 p.m. with senators permitted to speak therein for up to ten minutes each. the presiding officer: without objection. mr. whitehousemr. whitehouse: ak unanimous consent that that exchange be moved to the beginning or the end